Generic Brand Hepa Filter Suitable for Hoover Windtunnel 43611-042401402 (Pack of 4) WASHABLE HEPA Filters Designed for Hoover Bagless Uprights with Twin Chamber System Such as Windtunnel, Empower & Savvy. Replaces OEM#: 43611042, 42611049, 40140201, 40140202, Also Referred to as Type 201 Filter True Hepa Rated - Filters out 99.97% of Airborne Particles Down to 0.3 Microns. If your Filter is Approximately 12" x 3" , This is What You Need. Washable and Reusable